Multiple Choice
Which of the following events would decrease competition for resources in an ecosystem?
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48. Ecology
Introduction to Ecology
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Which of the following best describes primary succession?
A
The seasonal migration of species to different habitats
B
The gradual establishment of a biological community in an area where no soil previously existed
C
The rapid replacement of one community by another in an area with existing soil
D
The introduction of invasive species into a stable ecosystem
Verified step by step guidance1
Understand the concept of primary succession: It is the process of community development in a previously uninhabited and barren habitat with no initial soil.
Identify the key characteristics of primary succession: It begins in lifeless areas such as regions left by retreating glaciers or volcanic eruptions.
Recognize the role of pioneer species: These are the first organisms, like lichens and mosses, that colonize the barren environment and contribute to soil formation.
Differentiate primary succession from secondary succession: Secondary succession occurs in areas where a community has been disturbed but soil remains, unlike primary succession.
Evaluate the given options: The correct description of primary succession is the gradual establishment of a biological community in an area where no soil previously existed.
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